Results 31 to 40 of about 5,518 (174)

Half-BPS M2-brane orbifolds [PDF]

open access: yes, 2010
Smooth Freund-Rubin backgrounds of eleven-dimensional supergravity of the form AdS_4 x X^7 and preserving at least half of the supersymmetry have been recently classified.
de Medeiros, Paul   +1 more
core   +2 more sources

Joins of $\sigma$-subnormal subgroups

open access: yes, 2023
Let $\sigma=\{\sigma_j\,:\, j\in J\}$ be a partition of the set $\mathbb{P}$ of all prime numbers. A subgroup $X$ of a finite group $G$ is~\textit{$\sigma$-subnormal} in $G$ if there exists a chain of subgroups $$X=X_0\leq X_1\leq\ldots\leq X_n=G$$ such that, for each $1\leq i\leq n-1$, $X_{i-1}\trianglelefteq X_i$ or $X_i/(X_{i-1})_{X_i}$ is a ...
Ferrara, Maria, Trombetti, Marco
openaire   +2 more sources

Exponential and weakly exponential subgroups of finite groups [PDF]

open access: yesInternational Journal of Group Theory
Sabatini [L. Sabatini, Products of subgroups, subnormality, and relative orders of elements, Ars Math. Contemp., 24 no. 1 (2024) 9 pp.] defined a subgroup $H$ of $G$ to be an exponential subgroup if $x^{|G:H|} \in H$ for all $x \in G$, in which case we ...
Eric Swartz, Nicholas J. Werner
doaj   +1 more source

On the join of subnormal subgroups [PDF]

open access: yesProceedings of the American Mathematical Society, 1974
Let G \mathfrak {G} be the class of finitely generated groups. If the join of finitely many subnormal X = s n X \mathfrak {X} = sn\mathfrak {X} subgroups is always an X \mathfrak {X} -group and
openaire   +1 more source

Visual acuity outcomes up to 12 years and risk factors for visual impairment in a national cohort of extremely preterm born children – The Extremely Preterm Infants in Sweden Study (EXPRESS)

open access: yesActa Ophthalmologica, Volume 104, Issue 1, Page 65-74, February 2026.
Abstract Purpose The Extremely Preterm Infants in Sweden Study (EXPRESS) followed a national cohort of extremely preterm born (EPT, i.e. <27 weeks) children until 12 years of age. This study aimed to investigate the longitudinal development of visual acuity (VA) in children born EPT, explore the predictive value of early visual assessments, and ...
Despoina Tsamadou   +12 more
wiley   +1 more source

Clinical Models of Care for Adults With Intellectual Disabilities in Forensic Mental Health Services: A Scoping Review

open access: yesJournal of Intellectual Disability Research, Volume 70, Issue 3, Page 242-261, March 2026.
ABSTRACT Background People with intellectual disabilities (ID) and forensic histories face significant health inequalities, including reduced quality of life and prolonged stays in mental health hospitals. This is a global health issue, and there is an urgent need for evidence‐based specific forensic interventions, models of care and service models to ...
Alina Haines‐Delmont   +12 more
wiley   +1 more source

Assessing Severity in Anorexia Nervosa Using Alternative Criteria to the DSM‐5 in a Cross‐Sectional Study

open access: yesInternational Journal of Eating Disorders, Volume 58, Issue 12, Page 2317-2330, December 2025.
ABSTRACT Objective This study compared overvaluation of weight and shape (OWS), drive for thinness (DT), and their combination (OWS‐DT) as alternative severity classifications for anorexia nervosa (AN) to the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM‐5) severity classification.
Esther Henriet   +5 more
wiley   +1 more source

Mixability of Finite Groups

open access: yesRandom Structures &Algorithms, Volume 67, Issue 4, December 2025.
ABSTRACT A finite group G$$ G $$ is mixable if a product of random elements, each chosen independently from two options, can distribute uniformly on G$$ G $$. We present conditions and obstructions to mixability. We show that 2‐groups, the symmetric groups, the simple alternating groups, several matrix and sporadic simple groups, and most finite ...
Gideon Amir   +3 more
wiley   +1 more source

Groups with finitely many normalizers of non-subnormal subgroups

open access: yesLe Matematiche, 2007
It is proved that a group G has finitely many normalizers of non-subnormal subgroups if and only if each subgroup of G either is subnormal or has finitely many conjugates; groups with this latter property have been completely described in [8].
Fausto De Mari, Francesco De Giovanni
doaj  

On supersolvability of finite groups with $mathbb P$-subnormal subgroups [PDF]

open access: yesInternational Journal of Group Theory, 2013
In this paper we have found systems of subgroups in a finite group which $Bbb P$-subnormality guarantees supersolvability of the whole group.
Viktoryia Kniahina, Victor Monakhov
doaj  

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